[{"id":3675890,"web_url":"http://patchwork.ozlabs.org/comment/3675890/","msgid":"","list_archive_url":null,"date":"2026-04-10T13:46:25","subject":"Re: [patch V2 08/11] fs/timerfd: Use the new alarm/hrtimer functions","submitter":{"id":79411,"url":"http://patchwork.ozlabs.org/api/people/79411/","name":"Frederic Weisbecker","email":"frederic@kernel.org"},"content":"Le Wed, Apr 08, 2026 at 01:54:20PM +0200, Thomas Gleixner a écrit :\n> Like any other user controlled interface, timerfd based timers can be\n> programmed with expiry times in the past or vary small intervals.\n> \n> Both hrtimer and alarmtimer provide new interfaces which return the queued\n> state of the timer. If the timer was already expired, then let the callsite\n> handle the timerfd context update so that the full round trip through the\n> hrtimer interrupt is avoided.\n> \n> Signed-off-by: Thomas Gleixner \n> Cc: Alexander Viro \n> Cc: Christian Brauner \n> Cc: Jan Kara \n> Cc: Anna-Maria Behnsen \n> Cc: Frederic Weisbecker \n> Cc: linux-fsdevel@vger.kernel.org\n\nReviewed-by: Frederic Weisbecker ","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","netfilter-devel@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=P4gDBByv;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=104.64.211.4; helo=sin.lore.kernel.org;\n envelope-from=netfilter-devel+bounces-11811-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"P4gDBByv\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201"],"Received":["from sin.lore.kernel.org (sin.lore.kernel.org [104.64.211.4])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fsdQf6l2sz1y2d\n\tfor ; Fri, 10 Apr 2026 23:47:22 +1000 (AEST)","from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sin.lore.kernel.org (Postfix) with ESMTP id 9384B30172C9\n\tfor ; Fri, 10 Apr 2026 13:46:35 +0000 (UTC)","from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id A39613C943D;\n\tFri, 10 Apr 2026 13:46:29 +0000 (UTC)","from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org\n [10.30.226.201])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 2A1C63C872F;\n\tFri, 10 Apr 2026 13:46:28 +0000 (UTC)","by smtp.kernel.org (Postfix) with ESMTPSA id 6D792C19421;\n\tFri, 10 Apr 2026 13:46:28 +0000 (UTC)"],"ARC-Seal":"i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1775828789; cv=none;\n b=ZLTh7yiCqg+TF0tE6oxgtMOsqsErBLtSzN2LddjpF4mb3RQriJrFUH8+iFAcP47dkp+idL9nJrnG4axoZF9+zvSDdylRzVgGPGP/OWISWiKoIBiFqDmtS+IhSvrwmIu7+3Lw9Hq6ps6rbMc0Vf+MOij5VoyH55B/BEJQxDh7zkg=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1775828789; c=relaxed/simple;\n\tbh=TNdv8AasTn4bhwj7Byh6kLmsxwsGmvbw3eyvcqZxFfw=;\n\th=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version:\n\t Content-Type:Content-Disposition:In-Reply-To;\n b=JLkGqeh5VpKEcJHb9VdfcFt1QhbIasHzcrULaES6G2sjTcwyFfBiA9QF3nIJMaOqgnEIBlSzWLu6K6IsxFBCs4nr5U09M+6euH4Cc/VkiD2iXhZcld1bdSVH3CO1sSlvmHGxhuai2qK0IUB2FZ01GJmMiW5iEz93v+ftqJaE+p4=","ARC-Authentication-Results":"i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=P4gDBByv; arc=none smtp.client-ip=10.30.226.201","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1775828788;\n\tbh=TNdv8AasTn4bhwj7Byh6kLmsxwsGmvbw3eyvcqZxFfw=;\n\th=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n\tb=P4gDBByv540dPLfhp5DRYLyG/mcq5Gonx7GOWH7mQEH3Kl7IUs9Kx7MVQUt06uADN\n\t 73WZ2Zfj6Rqy3kxqRIpbAD8BBcYj8egmZf/c5np1v3iPZlUaiwNxrj0DBsZNxPB153\n\t WZfcHaeHFl2kIsH11RKrhzIjjehlkr6BsJCu0DDDUt0yPjEi7TLNcqPDNjg3A76QE2\n\t gvV2+vXCREzkIPT9oK8KLg3kihCZqXSFkV48cAoDPJdbb7gOEi7dFVBO8AQrdHzUly\n\t LNpTdd5GuvJ1ROtYRSvXSixNOKAFf9GOIjXxT6gZ8QAfDEuqCp/dc06xOfV9kcH3G5\n\t mjMxkSKz+ng4g==","Date":"Fri, 10 Apr 2026 15:46:25 +0200","From":"Frederic Weisbecker ","To":"Thomas Gleixner ","Cc":"LKML ,\n\tAlexander Viro ,\n\tChristian Brauner , Jan Kara ,\n\tAnna-Maria Behnsen ,\n\tlinux-fsdevel@vger.kernel.org, Calvin Owens ,\n\t\"Peter Zijlstra (Intel)\" ,\n\tJohn Stultz , Stephen Boyd ,\n\tSebastian Reichel , linux-pm@vger.kernel.org,\n\tPablo Neira Ayuso ,\n\tFlorian Westphal , Phil Sutter ,\n\tnetfilter-devel@vger.kernel.org, coreteam@netfilter.org","Subject":"Re: [patch V2 08/11] fs/timerfd: Use the new alarm/hrtimer functions","Message-ID":"","References":"<20260408102356.783133335@kernel.org>\n <20260408114952.469141112@kernel.org>","Precedence":"bulk","X-Mailing-List":"netfilter-devel@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Type":"text/plain; charset=iso-8859-1","Content-Disposition":"inline","Content-Transfer-Encoding":"8bit","In-Reply-To":"<20260408114952.469141112@kernel.org>"}}]